Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Branchville W Department

Perfluorononanoic acid, otherwise known as PFNA or C9, is a PFC similar in function and use to PFOA. These chemicals were used in the production of non-stick, stain repellent and chemically inert coatings. Click here to read more about perfluorinated chemicals.

 

21

Samples

0

Samples exceeding legal limit (MCL)

9

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
20192.74 ppt552.10 ppt - 3.30 ppt
20202.40 ppt442.20 ppt - 2.80 ppt
2021ND40ND
2022ND40ND
2023ND40ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.006 ppt

The EWG Health Guideline of 6 ppt for perfluorononanoic acid was defined by EPA recommended application of the toxicity value for PFDA published in the Integrated Risk Information System’s toxicological review . This health guideline harm to the immune system and harm to fetal growth and child development.

EPA Maximum Contaminant
Level (MCL): 10 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2019-01-1641818422.80 ppt
2019-05-1542984633.10 ppt
2019-08-0743810532.40 ppt
2019-09-2344349393.30 ppt
2019-10-1644601362.10 ppt
2020-01-2145447642.20 ppt
2020-05-0546211442.80 ppt
2020-07-1346703572.30 ppt
2020-10-1947544972.30 ppt
2021-01-224820599ND
2021-04-054871013ND
2021-07-144955209ND
2021-10-04202110060112ND
2022-01-12810-11981-1ND
2022-04-06810-20028-1ND
2022-07-12810-30366-1ND
2022-10-17810-41715-1ND
2023-01-16810-50590-1ND
2023-04-11810-59810-1ND
2023-07-03810-68724-1ND
2023-10-12810-81354-1ND